CN107962341B - A kind of online restorative procedure of roll surface of roller press - Google Patents
A kind of online restorative procedure of roll surface of roller press Download PDFInfo
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- CN107962341B CN107962341B CN201711235511.1A CN201711235511A CN107962341B CN 107962341 B CN107962341 B CN 107962341B CN 201711235511 A CN201711235511 A CN 201711235511A CN 107962341 B CN107962341 B CN 107962341B
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- roll surface
- wear
- stud
- resistant block
- roller press
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses a kind of online restorative procedures of roll surface of roller press, comprising the following steps: S1: several prefabricated wear-resistant blocks of production；S2: prefabricated wear-resistant block is successively welded in roll surface failure area and forms several field joints；S3: abrasion-proof structure is set on prefabricated wear-resistant block surface；S4: adjacent prefabricated wear-resistant block is subjected to welded connecting and forms attachment weld；S5: it is welded to connect prefabricated wear-resistant block and normal roll surface to form transition face；S6: the outwardly extending direction of abrasion-proof structure is provided with transition abrasion-proof structure on transition face, pass through the structure setting of prefabricated wear-resistant block, badly damaged roll surface is used not only for quickly to be repaired, and can also be used for the reparation of roll surface generally damaged, to guarantee that roll surface uses the squeezing effect in latter stage, extension roll surface service life.
Description
Technical field
The present invention relates to technical field of mineral processing, more particularly to a kind of online restorative procedure of roll surface of roller press.
Background technique
Roll squeezer (high-pressure roller mill) be develop later 1980s it is a kind of in ore, it is fine crushing
Equipment was developed rapidly with wear-resistant material, the progress of hydraulic technique, control technology at nearest 15 years, due to its production
It measures big, high-efficient, has many advantages, such as energy-saving and environmental protection, become the necessary equipment of mineral grinding production field, had been widely used
In industries such as building material cement, metallurgical mine, chemical industry.
Roll squeezer (high-pressure roller mill) is mainly made of roller system, driving part, hydraulic system, control system, crucial
Component is the roller in roller system, and the roll surface of roller directly acts on material, is squeezed under high pressure effect material, is broken
Broken, grinding.Present roll surface has the roll surface of the roll surface for welding wear-resisting striped, hard alloy stud roll surface and other forms, for not
Same material uses different roll surfaces.The main failure forms of roll surface are the abrasive wears under condition of high ground stress, since roll surface is held
It is huge by pressure, toward contact will cause roll surface spalling, roll surface stud fracture phenomena such as, if not in time repair (can not often stop
Machine or downtime are short, have little time to repair), it will result in roll surface and play hole.Especially squeezing the higher material of quartz content or object
Have when having metallic foreign body in bulk or material in material, Fast Wearing can be generated to roll surface or directly contributes roll surface localized delamination, rises
Phenomenon is cheated, seriously affects squeezing effect, or even cause roll vibration violent, damages bearing and speed reducer etc..In addition, making in roll surface
With the later period, it will usually play the hole in hole, big and small hole or even bunchiness, on roll surface almost without squeezing effect.Usual roll surface
Method for maintaining be: to welding roll surface carry out again roller weld wearing layer, to stud roll surface again drilled edge follow closely.But to this tight
The roll surface damaged again, both maintaining methods could will repair reluctantly roll surface with long time (or even some months), this is
It is unacceptable using institute, producer, so often being continued to after simple-to-maintain using it is bigger to will cause impaired area, cheats deeper
The phenomenon that, it is necessary to roller or halt production are replaced, this can also cause damages to manufacturing firm to using producer to cause very big loss,
It can also not up to require to cause contract dispute due to the service life of roll surface.
Badly damaged roll surface is quickly repaired, is able to maintain that production using producer, is that roll surface maintenance is necessary
It solves the problems, such as.
Summary of the invention
It is an object of the invention to: overcome the above-mentioned problems in the prior art, proposes that a kind of roll surface of roller press is online
Restorative procedure is used not only for badly damaged roll surface and is quickly repaired by the structure setting of prefabricated wear-resistant block, and
It can also be used for the reparation of roll surface generally damaged, to guarantee that roll surface uses the squeezing effect in latter stage, extension roll surface service life.
The purpose of the present invention is realized by following technical proposals:
A kind of online restorative procedure of roll surface of roller press, which comprises the following steps:
S1: several prefabricated wear-resistant blocks of production；
S2: prefabricated wear-resistant block is successively welded in roll surface failure area and forms several field joints；
S3: abrasion-proof structure is set on prefabricated wear-resistant block surface；
S4: adjacent prefabricated wear-resistant block is subjected to welded connecting and forms attachment weld；
S5: it is welded to connect prefabricated wear-resistant block and normal roll surface to form transition face；
S6: the outwardly extending direction of abrasion-proof structure is provided with transition abrasion-proof structure on transition face.
The online restorative procedure of a kind of roll surface of roller press of the invention, the length and width of the prefabricated wear-resistant block and high size point
Not are as follows: 40-80mm, 80-120mm and 20-80mm.
The online restorative procedure of a kind of roll surface of roller press of the invention, the quality of materials component of the prefabricated wear-resistant block are as follows: C
0.9~1.2%, Si 0.3~0.8%, Mn 11~14% and Cr 1.5~2.5%, remaining is Fe and inevitable impurity.
The quality group of the material of the online restorative procedure of a kind of roll surface of roller press of the invention, the field joint and transition face
Part are as follows: C 0.04~0.1%, Si≤0.9%, Mn 0.5~2.5%, Cr 22~25%, Ni 12~14%, Mo 2~3%, Cu≤
0.75%, remaining is Fe and inevitable impurity.
The online restorative procedure of a kind of roll surface of roller press of the invention, the abrasion-proof structure is the stud structure of assembly, described
Stud structure includes several stud holes of prefabricated wear-resistant block surface setting, is equipped with stud in the stud hole.
The online restorative procedure of a kind of roll surface of roller press of the invention, the stud hole are arranged in step sl, and the S3 exists
After S6, also stud is fitted into stud hole.
The fit-up gap in the online restorative procedure of a kind of roll surface of roller press of the invention, the stud and stud hole is 0-
0.5mm, the stud hole depth are 10-50mm.
It is provided in the fit-up gap in the online restorative procedure of a kind of roll surface of roller press of the invention, the stud and stud hole
Anaerobic adhesive, the main component of the anaerobic adhesive are metering system acid diesters.
The online restorative procedure of a kind of roll surface of roller press of the invention, abrasion-proof structure is made after S1 in the S3.
The online restorative procedure of a kind of roll surface of roller press of the invention, the abrasion-proof structure is the wear-resisting striped of welding, described
The size of wear-resisting striped are as follows: 10~30mm of fringe spacing, 10~30mm of width of fringe and streak height 2~20mm is described wear-resisting
Streak material quality component are as follows: C 5~6.5%, Si 0.4~1.8%, Mn 0~0.6%, Cr 20~28%, Nb 4.5~6.5%
With B 0~0.6%, remaining is Fe and inevitable impurity.
According to the above technical scheme, resistance to the beneficial effects of the present invention are: proposing a kind of online restorative procedure of roll surface of roller press
Abrading block can be prefabricated, is not take up roll surface maintenance time；It can be carried out that quickly reparation, repairing effect is good, energy for badly damaged roll surface
Guarantee roll surface wear-resisting and reliability；Roller after reparation is good to the squeezing effect of material；Roll surface rehabilitation cost is low, quick.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the prefabricated wear-resistant block with stud hole of the online restorative procedure of roll surface of roller press of the present invention；
Fig. 2 is a kind of prefabricated wear-resistant block schematic diagram with wear-resisting striped of the online restorative procedure of roll surface of roller press of the present invention；
Fig. 3 is a kind of online restorative procedure band prefabricated wear-resistant block welding process schematic diagram of stud of roll surface of roller press of the present invention:
Fig. 4 is a kind of welding process signal of not prefabricated wear-resisting striped scheme of the online restorative procedure of roll surface of roller press of the present invention
Figure；
Fig. 5 is a kind of welding process signal of prefabricated wear-resisting striped scheme of the online restorative procedure band of roll surface of roller press of the present invention
Figure；
Fig. 6 is that a kind of prefabricated wear-resistant block in roll surface of roller press of the present invention online restorative procedure band stud hole repairs the completion of stud roller
Figure；
Fig. 7 is that a kind of prefabricated wear-resistant block reparation stud roller of online wear-resisting striped of restorative procedure band of roll surface of roller press of the present invention shows
It is intended to；
Fig. 8 is that a kind of prefabricated wear-resistant block scheme of the online wear-resisting striped of restorative procedure band of roll surface of roller press of the present invention repairs item
The completion figure of line roller.
Specific embodiment
The present invention is further illustrated with attached drawing combined with specific embodiments below.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Under normal conditions, classified according to surface structure, roll surface includes: stud roll surface and striped roll surface, and of the invention is repaired
In compound method, being equivalent to can be with the prefabricated wear-resistant block 1 in prefabricated band stud hole 11 as shown in Figure 1, without the pre- of any structure
Wear-resistant block 1 processed, or such as Fig. 2 of the prefabricated wear-resistant block 1 with wear-resisting striped show, and then three of the above is prefabricated resistance to for general stud roll surface
Abrading block 1 can use the structure such as Fig. 6 and 7, and striped roll surface then only selects the prefabricated wear-resistant block 1 without stud pore structure as schemed
The structure of 4 and Fig. 8.
Embodiment one:
Such as a kind of online restorative procedure of the roll surface of roller press in Fig. 1,3 and 6, comprising the following steps:
S1: several prefabricated wear-resistant blocks 1 of production；
S2: prefabricated wear-resistant block 1 is successively welded in roll surface failure area 3 and forms several field joints；
S3: adjacent prefabricated wear-resistant block 1 is subjected to welded connecting and forms attachment weld 5；
S4: prefabricated wear-resistant block 1 is welded to connect to form transition face with normal roll surface；
S5: the outwardly extending direction of abrasion-proof structure 2 is provided with transition abrasion-proof structure on transition face；
S6: stud is assembled in stud hole 11.
The length and width of the prefabricated wear-resistant block and high size are respectively as follows: 40-80mm, 80-120mm and 20-80mm.
The quality of materials component of the prefabricated wear-resistant block are as follows: C 0.9~1.2%, Si 0.3~0.8%, 11~14% and of Mn
Cr 1.5~2.5%, remaining is Fe and inevitable impurity.
The quality component of the material of the field joint and transition face are as follows: C 0.04~0.1%, Si≤0.9%, Mn 0.5~
2.5%, Cr 22~25%, Ni 12~14%, Mo 2~3%, Cu≤0.75%, remaining is Fe and inevitable impurity.Deposition
Metal Mechanic Property are as follows: tensile strength Rm >=550MPa, elongation percentage A >=20%.
The fit-up gap in the stud and stud hole is 0-0.5mm, and the stud hole depth is 10-50mm.
Anaerobic adhesive is provided in the fit-up gap in the stud and stud hole, the main component of the anaerobic adhesive is methyl-prop
Olefin(e) acid dibasic acid esters.
The mechanical property of the prefabricated wear-resistant block are as follows: σb≥735MPa、δ5≥30%、αkU≥147J/cm2、HBS≤300。
Stud diameter be 10~30mm, tolerance be with stud hole 11 formed gap fiting mode, gap value be 0~0.5mm,
Stud length is 10~50mm；Stud material are as follows: the tungsten-cobalt hard alloy that Co content is 10~20%, hardness is HRA >=85.
Embodiment two:
As Fig. 2,5 and 8 are a kind of online restorative procedure of roll surface of roller press of the present invention
A kind of online restorative procedure of roll surface of roller press, comprising the following steps:
S1: several prefabricated wear-resistant blocks 1 of production；
S2: prefabricated wear-resistant block 1 is successively welded in roll surface failure area 3 and forms several field joints；
S3: abrasion-proof structure 2 is set on prefabricated 1 surface of wear-resistant block；
S4: adjacent prefabricated wear-resistant block 1 is subjected to welded connecting and forms attachment weld 5；
S5: prefabricated wear-resistant block 1 is welded to connect to form transition face with normal roll surface；
S6: the outwardly extending direction of abrasion-proof structure 2 is provided with transition abrasion-proof structure on transition face.
The length and width of the prefabricated wear-resistant block 1 and high size are respectively as follows: 40-80mm, 80-120 and 20-80mm.
The quality of materials component of the prefabricated wear-resistant block 1 are as follows: C 0.9~1.2%, Si 0.3~0.8%, 11~14% and of Mn
Cr 1.5~2.5%, remaining is Fe and inevitable impurity.
The abrasion-proof structure 2 is the wear-resisting striped of welding, the size of the wear-resisting striped are as follows: 10~30mm of fringe spacing,
2~20mm of 10~30mm of width of fringe and streak height.
The wear-resisting striped and transition wear-resistant surface quality of materials component are as follows: C 5~6.5%, Si 0.4~1.8%, Mn 0~
0.6%, Cr 20~28%, Nb 4.5~6.5% and B 0~0.6%, remaining is Fe and inevitable impurity, the wear-resisting striped
Performance are as follows: HRC >=60.
The mechanical property of the prefabricated wear-resistant block are as follows: σb≥735MPa、δ5≥30%、αkU≥147J/cm2、HBS≤300.
The quality of materials component of the field joint and attachment weld 5 are as follows: C 0.04~0.1%, Si≤0.9%, Mn 0.5
~2.5%, Cr 22~25%, Ni 12~14%, Mo 2~3%, Cu≤0.75%, remaining is Fe and inevitable impurity, peace
The deposited metal mechanical property of welding equipment seam are as follows: tensile strength Rm >=550MPa, elongation percentage A >=20%.
Embodiment three:
As Fig. 4 and 8 is a kind of online restorative procedure of roll surface of roller press of the present invention
A kind of online restorative procedure of roll surface of roller press, comprising the following steps:
S1: several prefabricated wear-resistant blocks 1 of production；
S2: prefabricated wear-resistant block 1 is successively welded in roll surface failure area 3 and forms several field joints；
S3: adjacent prefabricated wear-resistant block 1 is subjected to welded connecting and forms attachment weld 5；
S4: prefabricated wear-resistant block 1 is welded to connect to form transition face with normal roll surface；
S5: abrasion-proof structure 2 is set in wear-resistant block 1, is provided on transition face along the outwardly extending direction of abrasion-proof structure 2
Transition abrasion-proof structure.
The length and width of the prefabricated wear-resistant block 1 and high size are respectively as follows: 40-80mm, 80-120 and 20-80mm.
The quality of materials component of the prefabricated wear-resistant block 1 are as follows: C 0.9~1.2%, Si 0.3~0.8%, 11~14% and of Mn
Cr 1.5~2.5%, remaining is Fe and inevitable impurity.
The abrasion-proof structure 2 is the wear-resisting striped of welding, the size of the wear-resisting striped are as follows: 10~30mm of fringe spacing,
2~20mm of 10~30mm of width of fringe and streak height.
The wear-resisting striped and transition wear-resistant surface quality of materials component are as follows: C 5~6.5%, Si 0.4~1.8%, Mn 0~
0.6%, Cr 20~28%, Nb 4.5~6.5% and B 0~0.6%, remaining is Fe and inevitable impurity, the wear-resisting striped
Performance are as follows: HRC >=60.
The mechanical property of the prefabricated wear-resistant block are as follows: σb≥735MPa、δ5≥30%、αkU≥147J/cm2、HBS≤300.
The quality of materials component of the field joint and attachment weld 5 are as follows: C 0.04~0.1%, Si≤0.9%, Mn 0.5
~2.5%, Cr 22~25%, Ni 12~14%, Mo 2~3%, Cu≤0.75%, remaining is Fe and inevitable impurity, peace
The deposited metal mechanical property of welding equipment seam are as follows: tensile strength Rm >=550MPa, elongation percentage A >=20%.
The invention has the advantages that wear-resistant block can be prefabricated, it is not take up roll surface maintenance time；It can be into for badly damaged roll surface
Row is quickly repaired, repairing effect is good, can guarantee roll surface wear-resisting and reliability；The squeezing effect of roller after reparation to material
It is good；Roll surface rehabilitation cost is low, quick.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of online restorative procedure of roll surface of roller press, which comprises the following steps:
S1: several prefabricated wear-resistant blocks of production；
S2: prefabricated wear-resistant block, which is sequentially filled, and is welded in roll surface hollow failure area forms several field joints；
S3: abrasion-proof structure is set on prefabricated wear-resistant block surface；The abrasion-proof structure is the stud structure of assembly, the stud structure
Including several stud holes that prefabricated wear-resistant block surface is arranged, stud is equipped in the stud hole；
S4: adjacent prefabricated wear-resistant block is subjected to welded connecting and forms attachment weld；
S5: it is welded to connect prefabricated wear-resistant block and normal roll surface to form transition face；
S6: the outwardly extending direction of abrasion-proof structure is provided with transition abrasion-proof structure on transition face；
The stud hole is arranged in step sl, and stud is also fitted into stud hole by the S3 after S6.
2. the online restorative procedure of a kind of roll surface of roller press according to claim 1, it is characterised in that: the prefabricated wear-resistant block
Length and width and high size be respectively as follows: 40-80mm, 80-120mm and 20-80mm.
3. the online restorative procedure of a kind of roll surface of roller press according to claim 1, it is characterised in that: the prefabricated wear-resistant block
Quality of materials component are as follows: C 0.9~1.2%, Si 0.3~0.8%, Mn 11~14% and Cr 1.5~2.5%, remaining is
Fe and inevitable impurity.
4. the online restorative procedure of a kind of roll surface of roller press according to claim 1, it is characterised in that: the field joint and
The quality component of the material of transition face are as follows: C 0.04~0.1%, Si≤0.9%, Mn 0.5~2.5%, Cr 22~25%, Ni
12~14%, Mo 2~3% and Cu≤0.75%, remaining is Fe and inevitable impurity.
5. the online restorative procedure of a kind of roll surface of roller press according to claim 1, it is characterised in that: the stud and stud
The fit-up gap in hole is 0-0.5mm, and the stud hole depth is 10-50mm.
6. the online restorative procedure of a kind of roll surface of roller press according to claim 5, it is characterised in that: the stud and stud
Anaerobic adhesive is provided in the fit-up gap in hole, the main component of the anaerobic adhesive is metering system acid diester.
7. the online restorative procedure of a kind of roll surface of roller press according to claim 1, it is characterised in that: wear-resisting knot in the S3
Structure is made after S1.
8. according to claim 1 or a kind of online restorative procedure of roll surface of roller press described in one of 7, it is characterised in that: described resistance to
Mill structure is the wear-resisting striped of welding, the size of the wear-resisting striped are as follows: 10~30mm of fringe spacing, 10~30mm of width of fringe
With 2~20mm of streak height, described wear-resisting streak material quality group part are as follows: C 5~6.5%, Si 0.4~1.8%, Mn 0~
0.6%, Cr 20~28%, Nb 4.5~6.5% and B 0~0.6%, remaining is Fe and inevitable impurity.
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| CN201711235511.1A CN107962341B (en) | 2017-11-30 | 2017-11-30 | A kind of online restorative procedure of roll surface of roller press |
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| CN201711235511.1A CN107962341B (en) | 2017-11-30 | 2017-11-30 | A kind of online restorative procedure of roll surface of roller press |
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| CN113578456A (en) * | 2021-08-04 | 2021-11-02 | 武汉华材表面科技有限公司 | High-density stud roller sleeve of brazed stud row of cast-in sheath and manufacturing method thereof |
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| JPS62207580A (en) * | 1986-03-06 | 1987-09-11 | Kobe Steel Ltd | Welding repair method for large diameter long sized roll with partial wear |
| US9102015B2 (en) * | 2013-03-14 | 2015-08-11 | Siemens Energy, Inc | Method and apparatus for fabrication and repair of thermal barriers |
| CN204672324U (en) * | 2015-05-29 | 2015-09-30 | 薛建春 | A kind of roll squeezer of exempting from build-up wear-resistant compression roller and using this compression roller |
| CN105414877A (en) * | 2015-11-04 | 2016-03-23 | 鲁一军 | Die core repairing process |
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